Dota 2 might be flying high, but Valve isn’t resting on its laurels. Instead, the company is working on a new framework for the game designed to improve user experience across the board. Think of it as Dota 2 v2… Dota 2.2… Dota 2×2 = Dota 4? Whatever.
There are three major parts to the rework. Part one is all about the user interface, revamping the dashboard and making it easier to find friends and games, organize your heroes, watch games, and learn to play. Part two focuses on custom games, giving players the freedom to play Dota 2 the way they want to. Part three brings a whole host of changes by utilizing the Source Engine, improving the game in a variety of ways and allowing players the creativity to make their own short movies with Source Filmaker, just as they do in Team Fortress 2.
You can get into the beta for Dota 2 Reborn by selecting it from the menu when you click Play in Steam. Your progress will be shared between both the “base” Dota 2 and Reborn. Valve hopes to bring Reborn out of beta sometime after The International, which takes place the first week of August.